The correct answer is C) You must maneuver to avoid the tug and tow. This is correct because according to the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, a sailing vessel overtaking a power-driven vessel, such as a tug and tow, is required to keep out of the way of the overtaken vessel. The sailing vessel must take early and substantial action to safely pass the tug and tow. The other options are incorrect because B) is not correct as only the sailing vessel is required to maneuver, not the tug and tow. A) and D) are incorrect as they do not properly apply the COLREGS/Inland Rules regarding an overtaking situation involving a sailing vessel and a power-driven vessel.